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why does my pool filter not have pressure

When it comes to pool maintenance, one of the most important tasks that every pool owner should prioritize is keeping the pool filter in good condition. The pool filter is responsible for keeping the pool water clean and safe for swimming by removing debris, dirt, and bacteria. However, there are times when you may notice that your pool filter is not functioning as it should be, and one common problem is the lack of pressure. In this article, we will discuss the possible reasons why your pool filter does not have pressure and how you can troubleshoot the issue.

Understanding Pool Filter Pressure

Before we dive deeper into the reasons why your pool filter does not have pressure, let us first define what pool filter pressure is. Pool filter pressure refers to the amount of resistance or force that the filter experiences when it pushes water through the filtration system. It is measured in pounds per square inch (PSI), and it usually ranges from 10 to 20 PSI, depending on the type and size of the filter.

Low pool filter pressure is an indication that there is a problem with the filtration system, and addressing it promptly is crucial to keep your pool clean and healthy.

Reasons Why Your Pool Filter Does Not Have Pressure

Here are some of the possible reasons why your pool filter does not have pressure:

1. Clogged or Dirty Filter

The most common reason why your pool filter does not have pressure is a dirty or clogged filter. When the filter becomes dirty or clogged, it cannot effectively remove debris and dirt from the water. It can also cause a decrease in water flow, resulting in low filter pressure.

Solution: To address this issue, you need to clean or replace the filter. If you have a sand filter, you need to backwash it, while cartridge filters require washing with a hose. Alternatively, if the filter is too old or too dirty, you may need to replace it.

2. Air Leak in the Filtration System

An air leak in the filtration system can also cause low pool filter pressure. When air enters the filtration system, it can cause disruptions in water flow, resulting in low pressure.

Solution: To eliminate an air leak, you need to check and tighten all connections in the filtration system. You can also apply a lubricant to the O-ring of the filter tank to prevent air from entering the system.

3. Damaged or Worn-Out Pump

A damaged or worn-out pump can cause low filter pressure. If the pump is not functioning correctly, it cannot push water through the filtration system, resulting in low pressure.

Solution: If the pump is damaged, you need to replace it with a new one. If it is worn-out, you can try to repair it, but if the damage is significant, replacement is a better option.

4. Clogged Pipes

Clogged pipes can also cause low pool filter pressure. When the pipes become clogged with debris, it can restrict water flow, resulting in low pressure.

Solution: To address this issue, you can use a pipe cleaner to remove debris and dirt from the pipes. You can also hire a professional pool technician to clean the pipes thoroughly.

5. Improperly Sized Filter

An improperly sized filter can also cause low pool filter pressure. When the filter is too small for the pool, it cannot effectively remove debris and dirt from the water, resulting in low pressure.

Solution: To address this issue, you need to replace the filter with a larger one that is suitable for the size of your pool.

Conclusion

In conclusion, low pool filter pressure is a common issue that pool owners encounter. It could be due to a dirty or clogged filter, air leaks, a damaged or worn-out pump, clogged pipes, or an improperly sized filter. If you encounter this problem, it is essential to troubleshoot the issue promptly to ensure that your pool is clean and safe for swimming. Regular maintenance and cleaning of the pool filter can also prevent this issue from occurring.

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After about 5~10days ,or when the reading of the pressure gauge on the pump side of the filter has increased by about 0.2bars since the last backwash , backwash the filter as follows:
1. Stop the pump
2.Close the valves on the suction and return lines.
3.Open the cover of the pump and empty the filter gasket .
4.Refit the cover
5.Open the valve to the drain outlet
6.Turn the lever to BACKWASH
7. Open the valves to the suction and return lines.
8.Start the pump .Rinse the filter for about 1 to 2 minutes until the water in the sight glass is clear .
NOTE : Any electric heater must be off .
9. Stop the pump
10. Turn the lever to RINSE , start the pump and rinse for about 15~30 seconds. Stop the pump and turn the lever to FILTER . This is the normal operating position .
11. Close the drain outlet valve and start the pump . Switch on the electric heater if any .
a.Firstly you can tell me the pool size such as wide, length and depth.The circulation period is 4 hours,then we can use the pool volume divide by 4 to know the flow rate.Based on this we can know choose the suitable model for sand filter and pump.
b.Usually 4 meters can install a pool light.Both ends of the pool can install the ladders.
The basic filtration equipment can be chosen like above method.The other accessories can be fixed according to the using environment and requirement.
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Contact: Sandy

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